Heat exchange device



Oct. 25, 1932. A, B MQDlNE 1,884,095

HEAT EXCHANGE DEVICE Filed Nov. 21, 1928 2 Sheets-Sheet 1 fa/#771355: Cyril/mf E, Madfm Oct. 25, 1932. A. B. MoDlNE 1,884,095

HEAT EXCHANGE DEVICE Filed Nov. 271, 1928 2 Sheets-Sheet 2 Patented Oct. 275, 1932 UNITED STATES PATENT "o1-FICE ARTHUR B. MODINILOF RACINE, WISCONSIN, ASSIGNOR-TO MODINE MANUFACTURING COMPANY, 0F RACINE, WISCONSIN, A CORPORATION 0F WISCONSIN HEAT EXCHANGE DEVICE Application led November 21, 1928. Serial- No. 820,797.

My invention relates to heat exchange devices and has among its other objects the production of devices of the kind described which are compact, convenient, eicient, durable, and satisfactory for us wherever found applicable.

A particular object of the invention 1s to provide improved means for directing theA ow of air through the device whereby the cool air is-drawn into the device through the lower relatively cool portion of a. radiator and is driven out of the device through the upper relatively hot portion of the radiator whereby a substantially uniform difference in temperature between the air being heated and the particular portion of the radiator operating to heat the air is maintained.

Another particular object of the invention is to provide improved apparatusof the kind described which is readily accessible for repairs or replacement.

Oil or other liquids are frequently heated asa result of their use as a cooling or a lubricating bath or the like, in connection with engine or machinery operation. Such liquids are usuallycirculated through a system or are drawn into a receptacle and left to stand while they lose their heat by radiation, such heat energy thereby serving no useful purpose. In the device lof my invention I have `provided a radiator through which a heated liquid may be passed and caused to lose its heat, the radiator being equally adapted to have liquid passed through it which has been heated as an incident to its use as above or which may have been heated primarily for the purpose of having the heat utilized by the radiator, and a further object of my invention is to provide improved means operative to pass any hot liquid through a radiator and thereby utilize the heat for keeping a room warm.

A still further object is to provide a heating device which is operative to utilize the latent heat of any liquid and particularly of the heat which a liquid has absorbed incidental to its use as a cooler or as la lubricant.

Many other objects and advantages of the construction herein shown and described will be obvious to those skilled in the art from the disclosure herein given.

To this end my invention consists in the novel construction, arrangement and combination of parts herein shown and described,

and more particularly pointed out in the claims.

In the drawings, wherein like reference characters indicate like or corresponding parts:

Fig. 1 is a front elevational view of the preferred embodiment of my invention;

Fig. 2 is a section taken along the line 2-2 of Flg. 1;

Fig. 3 is a section taken along the line 3-3 of Fig. 1;

Fig. 4 is a section taken along the line 4-4 of Fig. 1; and

Fig. 5 is a section taken along the line 5-5 of Fijg. 4.

Re erring now to the drawings, the reference character 10 designates generally a housmg for a heat exchange device having a radiator 11 forming one of its walls. The radiator 11 is shown as forming the front wall but it could equally as well be the rear or some other wall of the housing.

The heating device comprises, in addition to the front wall, side walls 14 and a back wall 15. A casing or manifold 16 provides a cover for the housing and a manifold casing or casting 19 forms a base support. The radiator 11 is made up of a plurality of vertically extending tubes 12 and transversely extending fins or plates 13, the plates or fins being swedged or otherwise suitably connected to the tubes. Upper and lower header tanks 18 are connected by means of the tubes 12, the upper tanks being fastened to the casing cover 16 and the lower tank to the base 17 by means of bolts 19.

A feed pipe 20 supplies hot liquid to the radiator through connecting channels 21 and 22 which are formed in the casing 16. The channel 22 opens into the upper header tank 18 at two oppositely positioned points near the ends thereof. The iiuid, which comes from a source of supply (not shown) where it has been heated primarily for the purpose or incidentally as above described, passes through the tubes 12 and eriers the lower header tank 18 from whic it is drawn through channels 23 and 24 by a pump 41.

. The channels 23 and 24 are formed in the base casing 17, the channel 23 being connected with the lower tank 18 near itsends so that the cooled liquid is drawn from both ends of the tank. The cooled liquid is forced by the pump 41 out of the heating unit and into a return or discharge pipe 25.

The pump 41 comprises a casing 26 in which gears 27 and 28 are mounted on shafts 29 and 30 respectively, the gears being operated in the direction indicated by the arrows whereby the liquid is carried upwardly by the gear teeth and is forced out throu h the return ipe by the usual method o operation oi) gear pumps. The pump 41 is actuated by a motor 31 which is suspended from the cover casin 16 by means of a bracket32. A plurality of lolts 33 are provided to fasten the bracket 32 in position.

The motor 31 has a central shaft 34 upon which a sheave Wheel 35 is fixedly mounted. A sheave wheel 36 is mounted upon the pump shaft and is operatively connected with the sheave wheel by a belt 37. Operation of the motor 31 rotates the pump gears 27 and 28 in the direction of the arrows.

A fan 38 is also mounted on the motor shaft 34 in such a way as to drive air through the upper portion of the radiator 11 when the motor is o rating to actuate the pump 41 in the directlon indicated by the arrows. A

late 39 which takes the general form of a rustum of a cone, provides a passageway for the outward bound air currents which are set in motion by the rotation of the fan 38. The

inner end of the passageway formed by t-he plate 39 has a slightly larger diameter than the fan 38 which is mounted therein. The plate 39 flares outwardly so that the outer end of the passageway substantially coincides with the upper half of the radiator 11. A plurality of deilecting plates 40 are mounted on the exterior of the upper half of lthe radiator 11 in the path of the outward bound air currents, the plates being curved and turned upwardly to give the escaping air a generally outward and upward direction.

Any heated liquid may be utilized by the device, it being equally adapted for the. flow of water or other non-viscous liquids by gravity, or' the more viscous liquids such as oil ma be used in connection with the pump. he liquid is cooled as it flows downwardly through the radiator tubes 12 and by providing for the drawing of cool air through the lower ortion of the radiator a maximum transfer oi) heat from the relatively cool lower portion of the radiator is accomplished. The air having been thus artially heated is driven out through the l atively hot upper rtion of the radiator 11 by the fan 38. ghe same radiator unit operates to heat the relatively cool air as it enters the device by reason of its contact with the cooler portions of the radiator and to heat the air to a still higher temperature as it escapes from the fan by reason of its contact with the rela- ,tively hot upper portion of the radiator. A

substantial ortion of the heat of the liquid is radiated rom the u per portion of the de-v vice and practically a l of the latent heat of the fluid 1s radiated and absorbed b the inbound air currents at the bottom o the device. This arrangement provides means for heating air and keeping the difference in tem` Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit 'of my invention. Hence,'I do not wish to be understood as limiting myself to the exact form, construction, arrangement and combination of parts herein shown and described or uses mentioned.-

What Iy claim as new and desire to secure by Letters Patent is:

1. In a device of the kind described, a fan housin havin an open side, a radiator unit located in said forming one wall of the housing, a fan in the housing, said fan being located at one end of the radiator unit and having means oper-- able to rotate the fan, and partition members positioned in the housing whereby operation of the fan draws air into the housing through the lower portion unit and forces the air out of the housing through the upper portion of the radiator unit.

2. In a device of the kind described, a housing having an open side, a fan located in said housing, a radiator unit located in said opening in said side and forming one vertical wall of the housing, a feed pipe connected with the inlet end of the radiator unit, a discharge pipe connected with the opening in said side andl of the radiator outlet end of the radiator unit, said fan being rotatably mounted in the housing adjacent the inlet end of said unit, and a partition member mounted in the housing and arranged relative to the fan whereby operation of the fan draws air into the housing through the outlet end of the unit and discharges the air through the inlet end of the unit. i

3. In a device of thekind described, a fan housin a radiator unit forming one vertical wall o the housing, a feed pipe connected with the inlet end of the radiator unit, a

discharge pipe connected with the outlet end of the radiator unit, a fan rotatably mounted in the housing adjacent the inlet end of said unit, a plurality of horizontally extending and upwardly curved vanes on the exterior of the inlet end of said unit, and apartition member mounted in the housing and suitably arranged relative to the an whereby operation of the fan draws air into the housing through the outlet end of the unit and discharges the air through theinlet end of the unit and between said vanes.

4. In a device of the kind described, a housing, a radiator unit forming one wall of the housing, a feed pipe connected with the inlet end of the radiator unit, a discharge pipe connected with the outlet end of the radiator unit, a motor operated fan rotatably mounted in the housing adjacent the inlet end of said unit, a pump in said discharge pipe and means operatively connecting the fan and pump whereby operation of the fan actuates the pump, and a partition member in the housing suitably arranged relative to the fan whereby operation of the fan draws air'into the housing through the lower end of the unit and discharges air from the housing through the upper portion of the unit,

5. In a device of the kind described, a housing, a radiator unit forming one wall of the housing, a feed pipe connected with the inlet end of the radiator unit, a discharge pipe connected with the outlet end of the radiator unit, a motor operated fan rotatably mounted in the housing adjacent the inlet end of said unit, a pump in said discharge pipe and means operatively connecting the fan and pump whereby operation of the fan actuates the pump, and a partition member in the housing suitably arranged relative to the fan whereby operation of the fan draws air into the housing through the lower end of the unit and discharges air from the housing through the upper portion of the unit simultaneously with the discharge of liquid by the pump.

6. In a device of the kind described, the combination of a fan, a housing in which said fan is located, a radiator unit forming one wall of the housing and providing the sole means whereby air may enter and be discharged from said housing, said fan being located within the housing and relatively to the radiator unit to provide means for circulating air through said radiator unit into said housing and out of said housing through said unit.

7. In a device of the kind described, the combination of a fan, a housing having top, bottom, and end walls in which said fan is located, a radiator unit forming an end wall of said housing, said fan being located within the housing and relatively to the radiator unit to provide means for causing circulation of air through said radiator unit and into said housing, a motor for driving said fan, said motor being mounted for support by said housing.

8. In a device of the kind described, the combination of a fan, a housing in which said fan is located, a radiator unit forming one wall of said housing, said fan being located within the housinO` and relatively to the radiator unit to provide means for causing circulation of air throu h said radiator unit and housing, a motor or driving said fan, said motor being mounted for support by said housing, a pump, and means connecting said fan and pump with said motor for driving said fan and pump;

9. In a device of the kind described, the combination of a fan, a housing in which said fan is located, a radiator unit forming an end wall of the housing, said fan being located and relatively to the radiator u nit to provide means for circulating air into and out of said housing through said radiator unit, and means for directing the circulation of air from said housing.

10. In a device ofthe kind described, the combination of a fan, a housing in which said fan is located, a-radiator unit forming one wall of said housing, said fan being located relatively to the radiator unit to provide means for causmg circulation of air into and' out of said housing throughsaid radiator unit, a motor for driving said fan, said motor being mounted to extend into the housing from one wall of said housing to adjacent an end of' said radiator, and means located adjacent the fan for directing the circulation of air from said housing.

11. In a device of the kind described, a fan housing, a fan located in said housing, a radiator unit forming one wall of the housing, said fan being arranged with respect to the radiator unit to provide means to draw air into the housing through one end of the radiator unit and to force the air out of the housing at the other end of the unit.

12. In a device of the kind described, the combination of a fan, a housing in which said fan is located, a radiator unit providing one wall of the housing, said fan being located adjacent one end of said housing and relatively to said unit to rovide means for circulating air through tlie opposite end of said unit and into said housing and from said housing through the first mentioned end of said unit.

In testimony whereof, I have hereun signed my name.

ARTHUR B. MODINE.

mehr No. 1, 884,095.

CERTIFICATE oF .Co1t`REcT`1oN.-y

I omver z5, 1932.

ARTHUR. B. -MoDiNE It is hereby certified that error appears in the lprinted vspecification of thel above numbered patent requiring correction as follows: Pago3, line 60, claim 7. after "bottom," insert the word ','side". Aand line 66, after "housing"'inse rt the words'nd from said housing through said unit"; and that the said Letters Patent shonld'be read with these corrections therein that the tothe record of the .case in the'Patent Office.

' Signed and sealed this 20th day of Decembert .A. D. `1932.

l M. J. Moore, (Seal) Acting Commissioner of Patents.

samev may conform v 

